Cell Measurement Method Aligning Reference Signal With Paging
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Solution Overview
Problem
In wireless communication systems, terminal devices in idle or inactive modes consume significant power to monitor paging messages and perform radio resource management measurements, as they need to frequently wake up to check for paging scheduling information.
Innovation Solution
A method where a network device obtains and sends a paging parameter to a terminal device, aligning the time domain position of a reference signal with the paging message, allowing the terminal to monitor and measure after waking up once, thereby minimizing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal device wakes up to monitor paging messages and perform RRM measurements separately, then the network can effectively manage terminal communication, but the terminal device power consumption increases
Solution Approach 1:
The patent combines paging message monitoring and RRM measurement into a single wake-up event. The network device configures the reference signal to be transmitted at the same time as the paging message, allowing the terminal to perform both functions simultaneously during one wake-up period, thereby reducing power consumption while maintaining communication management effectiveness
Solution Approach 2:
The network device pre-configures the terminal with paging parameters and reference signal configuration information before the terminal needs to wake up. This preliminary configuration allows the terminal to efficiently perform both paging monitoring and RRM measurement without additional setup time or energy expenditure during the wake-up event
2Measurement precision
If the terminal device wakes up frequently to perform RRM measurement, then the measurement accuracy is maintained, but the power consumption increases
Solution Approach 1:
The patent merges RRM measurement with paging message monitoring by aligning the reference signal transmission time with the paging occasion. This allows the terminal to maintain measurement accuracy through regular paging cycles without requiring additional separate wake-up events for measurement purposes
Solution Approach 2:
The solution utilizes the periodic nature of paging cycles to perform RRM measurements. By configuring the reference signal to coincide with periodic paging occasions, the terminal can maintain measurement accuracy through regular intervals while reducing overall power consumption compared to more frequent measurement-only wake-ups
3Device complexity
If the reference signal is sent at a time far from the paging message, then the network scheduling is simplified, but the terminal device must wake up multiple times increasing power consumption
Solution Approach 1:
The patent merges the timing of the reference signal with the paging message by configuring them to occur at the same time. This timing alignment simplifies network scheduling while simultaneously reducing terminal power consumption by eliminating the need for separate wake-up events
Solution Approach 2:
The solution changes the time domain parameter of the reference signal to match the paging occasion timing. By adjusting the reference signal's time domain position to coincide with the paging message, the system achieves both scheduling simplicity and reduced terminal energy consumption
Data Source
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AI summary
This application provides a cell measurement method and apparatus. Paging parameters are exchanged, so that an appropriate measurement position is configured, and this helps reduce power consumption of a terminal device. The method includes: A first network device obtains a first paging parameter of a cell served by a second network device. The first paging parameter is used to indicate a first time domain position at which a terminal device monitors a paging message from the second network device. The first network device sends a reference signal based on the first paging parameter. A time domain position of the reference signal is determined based on the first time domain position.